Oil quality in sea‐level quinoa as determined by cultivar‐specific responses to temperature and radiation conditions

Curti, Ramiro N.; Sanahuja, María del Carmen; Vidueiros, Silvina Mariela; Curti, Carolina Antonela; Pallaro, Anabel; Bertero, Héctor Daniel

doi:10.1002/jsfa.10092

Cited by 13 publications

(20 citation statements)

References 10 publications

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“…This effect has been extensively analysed in some crop species such as soybean (i.e. Assefa et al., 2019; Gibson & Mullen, 1996; Thomas et al., 2003; Wolf et al., 1982), although little is known about its impact on quinoa (Curti et al., 2020). In here, it was observed that seed composition changed and was especially altered in the medium‐long cycle varieties, in which high temperatures coincided with flowering and seed filling stages.…”

Section: Discussionmentioning

confidence: 99%

Heat stress lowers yields, alters nutrient uptake and changes seed quality in quinoa grown under Mediterranean field conditions

Matías

Rodríguez

Cruz

et al. 2021

J Agronomy Crop Science

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The global expansion of quinoa (Chenopodium quinoa Willd.) cultivation has been related to the nutritional properties of its seeds and the ability of this crop to cope with stress. However, research works evaluating the agronomic impact of quinoa cultivation out of the Andean region are still limited, especially under Mediterranean field conditions. In this work, the agronomic performance, seed composition and nutrient uptake (NU) of five quinoa varieties were analysed in two consecutive years (2017)(2018) under field conditions in Southwestern Europe. High temperatures were recorded during 2017 growing season, resulting in significantly lower yields (1.6 t/ha) compared to 2018 (2.5 t/ha). High-temperature stress coincided with flowering stage in those medium-to-long cycle varieties and was well correlated with detrimental effects on the vegetative stage of short and medium cycle varieties. Seed composition and mineral content of quinoa varied among varieties subjected to heat stress, which could be due to differences in the stress response. Protein and fibre contents were higher under high temperatures, while fats and carbohydrates contents decreased.Nutrient uptake, utilisation and partitioning were reduced under heat stress, probably due to heat-protection mechanisms and associated biochemical changes. Early maturing varieties showed better adaptation, especially Marisma, which achieved the highest yield in both years (3.0 t/ha, on average). Overall, the results here presented support to the potential of quinoa cultivation in Europe highlighting the necessity to further explore varieties better adapted to elevated temperatures, a common stress affecting the Mediterranean area.

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Section: Discussionmentioning

confidence: 99%

Heat stress lowers yields, alters nutrient uptake and changes seed quality in quinoa grown under Mediterranean field conditions

Matías

Rodríguez

Cruz

et al. 2021

J Agronomy Crop Science

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“…Quinoa seeds are gluten-free and rich in minerals, vitamins, and dietary fiber, and various bioactive compounds are also present in significant amounts in different parts of the plant. The oil content of quinoa seed ranges from 2 to 10%, with an average of 5.0–7.2% ( 3 ), with yields between 80 and 400 kg of oil ha –1 , which reveal quinoa as a new potential oilseed crop ( 9 ), although those values are lower than those found in common oilseed crops, such as sunflower (40–50%), rapeseed (30–50%), or soybean (20%) ( 10 ). Furthermore, the nutritional quality of quinoa oil is remarkable ( 3 , 4 , 11 , 12 ).…”

Section: Introductionmentioning

confidence: 99%

“…In this regard, variations in the chemical composition of quinoa seeds have also been reported under heat stress field conditions ( 29 , 33 ). These include changes in the fatty acid profile of quinoa, which was shown to be affected by the environmental conditions ( 9 ).…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, in contrast to drought and salinity, the heat stress response in quinoa has been poorly studied ( 38 , 39 ). The specific influence of heat stress on the fatty acid profile of quinoa seeds is still missing ( 40 ). Considering the current climate change scenario, which includes more recurrent episodes of elevated temperatures ( 41 ) that may cause detrimental impacts on agriculture, food safety, and security ( 42 , 43 ), it is crucial to evaluate the effects of heat stress episodes on seed yield and quality in food crops.…”

Section: Introductionmentioning

confidence: 99%

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Changes in Quinoa Seed Fatty Acid Profile Under Heat Stress Field Conditions

et al. 2022

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The nutritional quality of quinoa is often related to the high protein content of their seeds. However, and despite not being an oilseed crop, the oil composition of quinoa seeds is remarkable due to its profile, which shows a high proportion of polyunsaturated fatty acids (PUFAs), particularly in essential fatty acids such as linoleic (ω-6) and α-linolenic (ω-3). In line with this, this study aimed at evaluating the effect of elevated temperatures on the oil composition of different quinoa cultivars grown in the field in two consecutive years (i.e., 2017 and 2018). In 2017, heat stress episodes resulted in a reduced oil content and lower quality linked to decreased ratios of oleic acid:linoleic acid, larger omega-6 (ω-6) to omega-3 (ω-3) ratios, and lower monounsaturated fatty acid (MUFA) and higher PUFA contents. Furthermore, the correlations found between mineral nutrients such as phosphorous (P) and the contents of oleic and linoleic acids emphasize the possibility of optimizing oil quality by controlling fertilization. Overall, the results presented in this study show how the environmental and genetic factors and their interaction may impact oil quality in quinoa seeds.

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“…Under tropical conditions, grains were the main nutritional source for many pre-Hispanic cultures. Nowadays, quinoa is recognized in the food industry for some of its nutritional and techno-functional properties linked to its lipidic, protein and starchy nature [6,7].…”

Section: Introductionmentioning

confidence: 99%

Structural Characterization and Antioxidant Capacity of Quinoa Cultivars Using Techniques of FT-MIR and UHPLC/ESI-Orbitrap MS Spectroscopy

García-Parra

Roa-Acosta

Londoño

et al. 2021

Plants

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The existence of more of 16,000 varieties of quinoa accessions around the world has caused a disregard on their structural and phytochemical characteristics. Most of such accessions belong to cultivars settled in Colombia. The goal of this research was to evaluate the structural attributes and antioxidant capacities from six quinoa cultivars with high productive potential from central regions in Colombia. This study used middle-range infrared spectroscopy (IR-MIR) to determine the proteins, starch and lipids distinctive to quinoa grains. Ultra-high-performance liquid chromatography electrospray ionization Orbitrap, along with high-resolution mass spectrometry (UHPLC/ESI-Orbitrap MS), were also used to identify the existence of polyphenols in cultivars. The antioxidant capacity was determined through DPPH, ABTS and FRAP. The spectrums exhibited significant variances on the transmittance bands associated with 2922 cm−1, 1016 cm−1 and 1633 cm−1. Moreover, the intensity variations on the peaks from the secondary protein structure were identified, mainly on the bands associated with β-Sheet-1 and -2, random coil α elice and β-turns-2 and -3. Changes found in the ratios 996 cm−1/1014 cm−1 and 1041 cm−1/1014 cm−1 were associated with the crystalline/amorphous affinity. Regarding the antioxidant capacity, great differences were identified (p < 0.001) mainly through FRAP methods, while the phenolic acids and flavonoids were determined by UHPLC/ESI-Orbitrap MS techniques. The presence of apigenin and pinocembrin on grains was reported for the first time. Titicaca and Nariño were the most phytochemically diverse quinoa seeds.

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Oil quality in sea‐level quinoa as determined by cultivar‐specific responses to temperature and radiation conditions

Cited by 13 publications

References 10 publications

Heat stress lowers yields, alters nutrient uptake and changes seed quality in quinoa grown under Mediterranean field conditions

Heat stress lowers yields, alters nutrient uptake and changes seed quality in quinoa grown under Mediterranean field conditions

Changes in Quinoa Seed Fatty Acid Profile Under Heat Stress Field Conditions

Structural Characterization and Antioxidant Capacity of Quinoa Cultivars Using Techniques of FT-MIR and UHPLC/ESI-Orbitrap MS Spectroscopy

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